Empty fields and controls after testing

[Bob Sneidar]

Yes, what I do is name all my fields with the prefix fld, and my labels with lbl. This way I can distinguish between editable fields I created and things like, oh say, Datagrid fields. 

Bob


On Oct 26, 2011, at 2:43 PM, Ken Ray wrote:

> 
> On Oct 26, 2011, at 11:19 AM, Bob Sneidar wrote:
> 
>> Yes, you will need to write your own initialization routine. I do this anyway in all my forms because I read data into the fields, and then validate before writing them back to my storage. I always want to make sure I do not have any random data from a previous edit session making it's way into my database. Usually I have a populate handler that when passed empty for the arguement instead of a string or array, it puts empty into all my fields. Then I just call the populate handler when I open the form, typically in preOpenCard. 
> 
> 
> One thing to be careful about - NEVER do this (unless you are 100% sure):
> 
> on preOpenCard
>  repeat with x = 1 to the number of fields
>    put empty into field x
>  end repeat
> end preOpenCard
> 
> It seems reasonable, but what it will do is to empty out your label fields as well, which can be a real PITA to put back again. It's always better (IMHO) to either address the fields you want to clear *directly*, like:
> 
> on preOpenCard
>  put "FirstName,LastName,Age" into tFields
>  repeat for each item tField in tFields
>    put empty into field tField
>  end repeat
> end preOpenCard
> 
> OR, set some kind of custom property on the fields you want to clear (or protect), or at least make sure you walk carefully on fields that have their lockText turned on (which is what label fields have by default), like:
> 
> on preOpenCard
>  repeat with x = 1 to the number of fields
>    if the lockText of field x is false then
>      if the short name of field x is not among the items of "PrefilledField, DefaultCity" then
>        put empty into field x
>      end if
>    end if
>  end repeat
> end preOpenCard
> 
> Just my 2 cents…
> 
> Ken Ray
> Sons of Thunder Software, Inc.
> Email: kray at sonsothunder.com
> Web Site: http://www.sonsothunder.com/	
> 
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